Optical and conductive properties of Antimony-Bismuth co-doped titanium dioxide in terahertz range
| Autor: | Amjid Iqbal, Muhammad Mumtaz, Mushtaq Ahmed, M. Aslam Zia, M. Ahsan Mahmood, Izhar Ahmad, Sabih D. Khan |
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| Rok vydání: | 2021 |
| Předmět: |
Materials science
Terahertz radiation Physics::Optics chemistry.chemical_element 02 engineering and technology Dielectric 01 natural sciences Optical conductivity Bismuth 010309 optics Condensed Matter::Materials Science chemistry.chemical_compound Antimony Condensed Matter::Superconductivity 0103 physical sciences Dopant business.industry 021001 nanoscience & nanotechnology Condensed Matter Physics Atomic and Molecular Physics and Optics Electronic Optical and Magnetic Materials chemistry Titanium dioxide Optoelectronics 0210 nano-technology business Refractive index |
| Zdroj: | Infrared Physics & Technology. 112:103570 |
| ISSN: | 1350-4495 |
| DOI: | 10.1016/j.infrared.2020.103570 |
| Popis: | Fine tuning of optical and dielectric characteristics of titanium dioxide (TiO2), such as complex refractive index, optical conductivity, and dielectric function, have been demonstrated by doping, and co-doping of antimony and bismuth for applications in terahertz (THz) spectral frequency range. The characterization has been performed using X-ray diffraction, THz time-domain spectroscopy, and Effective-Medium Approximation theory. The results show an increasing trend in the measured parameters with frequency and dopant concentration. Moreover, the conductivity of the samples in THz range fulfills the Drude Smith model. |
| Databáze: | OpenAIRE |
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